/* ============================================================
   ALVO SYSTEMS — Components
   ============================================================ */

/* ---- Buttons --------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  padding: 14px 32px;
  border-radius: var(--radius-pill);
  transition: all 0.25s ease;
  cursor: pointer;
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient);
  color: var(--color-white);
  border: 1px solid transparent;
}

.btn-primary:hover {
  opacity: 0.88;
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: var(--color-white);
  border: 1px solid var(--color-border);
}

.btn-outline:hover {
  border-color: rgba(6, 198, 240, 0.4);
  color: var(--color-cyan);
  transform: translateY(-1px);
}

.btn-text {
  background: transparent;
  color: var(--color-cyan);
  border: none;
  padding: 0;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.btn-text::after {
  content: ' →';
}

.btn-text:hover {
  opacity: 0.75;
}

/* ---- Cards ----------------------------------------------- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 40px;
  position: relative;
  overflow: hidden;
  transition: border-color 0.3s ease, transform 0.3s ease;
}

.card:hover {
  border-color: rgba(6, 198, 240, 0.2);
  transform: translateY(-3px);
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.card:hover::before {
  opacity: 1;
}

.card-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  font-size: 1.2rem;
}

.card h4 {
  font-size: 1.6rem;
  margin-bottom: 12px;
  color: var(--color-white);
}

.card p {
  font-size: 0.95rem;
  color: var(--color-muted);
  max-width: none;
  margin-bottom: 24px;
}

/* ---- Grids ----------------------------------------------- */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

/* ---- Section header -------------------------------------- */
.section-header {
  margin-bottom: 60px;
}

.section-header h2 {
  margin-bottom: 16px;
  color: var(--color-white);
}

.section-header p {
  font-size: 1.1rem;
  max-width: 520px;
}

.section-header.center {
  text-align: center;
}

.section-header.center p {
  margin: 0 auto;
}

/* ---- Stat / Counter -------------------------------------- */
.stat-block {
  text-align: center;
  padding: 48px 32px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
}

.stat-number {
  font-family: var(--font-display);
  font-size: clamp(3rem, 6vw, 5rem);
  line-height: 1;
  margin-bottom: 10px;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--color-muted);
  line-height: 1.4;
  max-width: none;
}

/* ---- Steps (How It Works) -------------------------------- */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
}

.steps::before {
  content: '';
  position: absolute;
  top: 28px;
  left: 10%;
  right: 10%;
  height: 1px;
  background: var(--gradient);
  opacity: 0.3;
}

.step {
  padding: 0 24px;
  text-align: center;
  position: relative;
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-navy);
  border: 1px solid var(--color-border);
  font-family: var(--font-display);
  font-size: 1.6rem;
  margin-bottom: 20px;
  position: relative;
  z-index: 1;
  background: var(--gradient);
}

.step h4 {
  font-size: 1.1rem;
  letter-spacing: 0.05em;
  margin-bottom: 10px;
  color: var(--color-white);
}

.step p {
  font-size: 0.875rem;
  color: var(--color-muted);
  max-width: none;
}

/* ---- Case study block ------------------------------------ */
.case-study {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.case-study-header {
  padding: 48px 48px 32px;
  border-bottom: 1px solid var(--color-border);
}

.case-study-body {
  padding: 40px 48px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.case-result {
  border-left: 2px solid var(--color-cyan);
  padding-left: 20px;
}

.case-result .result-num {
  font-family: var(--font-display);
  font-size: 3.5rem;
  line-height: 1;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 6px;
}

.case-result p {
  font-size: 0.875rem;
  max-width: none;
}

/* ---- Pricing model --------------------------------------- */
.pricing-model {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.pricing-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 40px;
}

.pricing-card h4 {
  font-size: 1.4rem;
  margin-bottom: 8px;
  color: var(--color-white);
}

.pricing-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  background: rgba(6, 198, 240, 0.1);
  color: var(--color-cyan);
  border: 1px solid rgba(6, 198, 240, 0.2);
  border-radius: var(--radius-pill);
  padding: 4px 12px;
  margin-bottom: 20px;
}

.pricing-factors {
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.pricing-factor {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.875rem;
  color: var(--color-muted);
}

.pricing-factor::before {
  content: '—';
  color: var(--color-cyan);
  flex-shrink: 0;
  margin-top: 1px;
}

/* ---- Feature row (alternating) --------------------------- */
.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  padding: 80px 0;
  border-bottom: 1px solid var(--color-border);
}

.feature-row:last-child {
  border-bottom: none;
}

.feature-row.reverse .feature-content {
  order: 2;
}

.feature-row.reverse .feature-visual {
  order: 1;
}

.feature-content h3 {
  margin-bottom: 16px;
  color: var(--color-white);
}

.feature-content p {
  margin-bottom: 24px;
}

.feature-visual {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 40px;
  min-height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.feature-visual::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient);
}

.feature-meta {
  margin-top: 32px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  padding: 5px 14px;
  color: var(--color-muted);
}

/* ---- Page hero (compact, non-home pages) ----------------- */
.page-hero {
  padding-top: calc(var(--header-h) + 80px);
  padding-bottom: 60px;
}

.page-hero .section-label {
  margin-bottom: 16px;
}

.page-hero h1 {
  margin-bottom: 20px;
}

.page-hero p {
  font-size: 1.1rem;
  max-width: 540px;
}

/* ---- CTA strip ------------------------------------------- */
.cta-strip {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 48px;
  text-align: center;
  margin-top: 60px;
}

.cta-strip p {
  margin: 12px auto 28px;
  max-width: 480px;
}

/* ---- Pillar cards ---------------------------------------- */
.pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.pillar {
  padding: 32px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
}

.pillar-num {
  font-family: var(--font-display);
  font-size: 3rem;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 16px;
}

.pillar h4 {
  font-size: 1.1rem;
  letter-spacing: 0.05em;
  margin-bottom: 10px;
  color: var(--color-white);
}

.pillar p {
  font-size: 0.875rem;
  max-width: none;
}

/* ---- FAQ ------------------------------------------------- */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 32px;
}

.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px 28px;
}

.faq-q {
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 8px;
  color: var(--color-white);
}

.faq-a {
  font-size: 0.875rem;
  color: var(--color-muted);
  max-width: none;
}

/* ---- Form ------------------------------------------------ */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-muted);
  font-family: var(--font-mono);
}

.form-group input,
.form-group textarea {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 14px 18px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-white);
  width: 100%;
  transition: border-color 0.2s ease;
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: rgba(6, 198, 240, 0.4);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(255,255,255,0.25);
}

.form-group textarea {
  resize: vertical;
  min-height: 140px;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-stack {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-success {
  display: none;
  text-align: center;
  padding: 40px;
  color: var(--color-cyan);
  font-size: 1.1rem;
}

/* ---- Video embed ----------------------------------------- */
.video-wrap {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
}

.video-wrap iframe,
.video-wrap video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

/* ---- Responsive ------------------------------------------ */
@media (max-width: 1024px) {
  .steps {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }

  .steps::before {
    display: none;
  }

  .feature-row {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .feature-row.reverse .feature-content,
  .feature-row.reverse .feature-visual {
    order: unset;
  }

  .case-study-body {
    grid-template-columns: 1fr;
  }

  .pillars {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .grid-3 {
    grid-template-columns: 1fr;
  }

  .grid-2 {
    grid-template-columns: 1fr;
  }

  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .card {
    padding: 28px;
  }

  .steps {
    grid-template-columns: 1fr;
  }

  .pricing-model {
    grid-template-columns: 1fr;
  }

  .case-study-header,
  .case-study-body {
    padding: 28px;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .cta-strip {
    padding: 32px 24px;
  }
}